Turret-head for drill-machines



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W. C. JENNINGS. f

TURRET HEAD POR DRILL MACHINES.

Patented May' Z2,` 1894.

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W. o. JENNINGS. TURRBT HEAD POR DRILL MAGHINES,

No. 520,362. Patented May 22, 1894.

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' Wyo. JENNINGS. RRET HEAD F R DRILL M No. 520,362. Patented May22,1894.

im* INIIIIIINI HHN! MNHN@ mulrmlurmn Mull IL NITED STATES ATENTTURRET-HED FOR DRILL-MACHINES.

SPECIFICATION forming part of Letters Patent No. 520,362, dated May 22,1894.

Application led May 15 1893.

To all whom t may oon/067:72..-

Be it known that I, WILLIAM C. J ENNINGs,

a citizen of the United States, residing in the city and county ofCamden, State of New Jersey, have invented a new and useful Improvementin Turret-Heads for Drill -Machines, which improvement is fully setforth 1n the following specification and accompanying drawings. i Myinvention consists of an improvement 1n turret heads for use on drillpresses, provided with means substantially as hereinafter described forholding a number of tools, drills, reamers, counter bores and taps, &c.

It also provides means for reversing the motion of the tools withoutstopping the drill press, for the purpose of backing out taps.

It also provides means for removing and changing tools while one spindleis. engaged at work.

It further consists of the parts hereinafter described.

Figure l represents a front elevation of a device embodying myinvention. Fig. 2 represents a side elevation thereof. Fig. 3 representsa rear elevation thereof. Fig. 4 represents a section on line x, Fig. 1.Fig. 5 represents a side view of the front portion of a turret headembodying my invention. Fig. 6 represents a section on line y, y, Figs.3, 4, and 5. Figs. 7, 8, and 9 represent sectional views of detachedportions of my device. Figs. 10 and ll represent on an enlarged scale, aplan view and side elevation respectively, of brackets which areemployed for securing the turret head to the drill.

Similar letters of reference indicate corresponding parts in the severalfigures.

Referring to the drawings: A designates a turret head for drillingmachines, consisting of the two separable parts B, C, which are pivotedto each other, and held by a screw D. The part B is secured to the drillpress and is thereby stationary, the part C having a hub which revolveson the screw D secured to said part B.

In order to attach the part B to the drill, I employ the brackets F,which are clamped to the spindle by means of the screw G, and havebosses which receive the rods E, which are secured to the part B.

Mounted in a sleeve in the stationary part Serial No. 474,361. (Nomodel.)

B is a spindle H, which is secured in the spindle of the drill press,and carries a gear J. Said spindle H serves to transmit power to operatethe spindles of the turret head, and acts as a pivot for the swivel M,which carries the gear J, and also the gears K, L, L. Said gears K and Lare adapted to mesh with said gear J, and as lthe latter receives motionfrom the spindle H, motion is also imparted to the said gears K, L, L. AhandleN is secured to the swivel M, and beneath the latter is a quadrantP, which is provided with the notches Q, Q', Q2, into which said handleN is adapted to be placed, whereby the swivel is firmly held in place,the position depending on the direction of the motion required, as willbe hereinafter described.

R designates openings in the circumference of the stationary part B,which receive a spring-actuated bolt S, which is situated in a sleeve onthe movable part C, so that when said bolt enters one of lthe openingsR, the parts B, C, will be locked in a proper position ready to operate.Situated in the part C are the drill spindles T which carry the gears U,the latter being adapted to mesh with either the gears K or L, wherebymotion is imparted to the tools. Slots V are provided in the drillspindles through which the tools may be reached and forced out of thesockets in the spindles. Gages A are placed on the movable part C atsuitable points, the same consisting of a tube B having a split end, andsecured by the set screw C. In the tube is a rod E', which is secured inposition by the nut D working on the split end of the tube B.

A screw tap socket F is secured to a turret head spindle, which consistsof a casing G on the interior of which are the pins K', K2, one at theupper and the other at the lower end of the casing. A shoulder head H ofthe tap socket J works on the interior of the casing, the shoulders ofsaid head having clutches to engage with the pins K K2, whereby When thespindle is turned to the left as shown, the pin K at the upper end ofthe casing is engaged, while when the reverse motion is applied the headH engages with the pin K2.

The operation of the device is as follows: The bracket F is fastened tothe drill press,

and the rods E inserted in the bosses thereon, whereby the turret headconnected to said rods E is properly secured to the drill press. Thetools to be used are placed in the sockets of the spindles of the turrethead, and the gages are set the desired depth. Thel shaft H is securedin the spindle of the drill press, and hence power is transmitted to theintermediate gears L, L, and K, through gear J, to driving gears U, U,U, U, by which power and motion are imparted to the turret head spindlesT, T. The movable part C is revolved and the tool to be used is incorrect position, when the two parts B, C, are locked by the bolt Sentering one of the openings R. In this position the gear U is oppositethe gear J, but not contacting therewith. The swivel M is now rotateduntil the gear L meshes with the gear U, whereby motion is transmittedthereto, and hence to the tools. The swivel is locked in this positionby placing the handleN in the notch Q. To reverse the motion, the swivelis turned until the gear K meshes with the gearU. Theswivel is locked atthat point. Should it be desired to use another tool the swivel islocked by placing the handle in the notch Q', whereby the gears are outof engagement, the bolt S is withdrawn from the openings F, and the partC turned until the new tool is in the desired position, when the partsare again locked and the operation is repeated. It will be seen that bythis device, time is saved and stoppage of the machine prevented.

The device is of simple but durable construction, and easily operated,and accurate.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

l. A turret head for a drill press consisting of two separable parts,one stationary having means connected therewith for securing it to thepress, the other part being rotatably mounted on said stationary part,means substantially as described for locking said parts together, saidrotatable part carrying toolspindles with gears thereon, and a swivelcarried by the stationary part and provided with gearing substantiallyas described, said parts being combined substantially as described.

2. A turret head for a drill press having a stationary part, a separablerotatable part mounted on said stationary part, a spindle mounted insaid stationary part having a gear thereon, a swivel pivoted on saidspindle and having gearing mounted therein, means for locking saidswivel to said stationary part,l

and tool-spindles mounted in said rotatable part and having gearingmeshing with -said swivel gearing, said parts being combinedsubstantially as described.

3. A turret head for a drill press having a stationary part with arotary spindle therein, a gear wheel on said spindle,a swivel pivoted onsaid spindle and having gearing mounted thereon, means for locking saidswivel on said stationary part, a rotatable part mounted on saidstationary part and a screw tap socket secured to a turret head spindle,and provided with a shoulder head with clutches for engaging pins on theinterior of said socket, said parts being combined substantially asdescribed.

4. A turret head for drill presses formed of two parts, a spindle with agear, a swivel'carrying gears, means for locking said swivel, and drillspindles with sockets having slots for drifting out tools, and gearswhich are adapted to contact with the gears in the swivel, substantiallyas described.

5. A turret head for drill presses formed 0f two parts, a spindle withgearing, a swivel carrying gears, means for locking said swivel, drillspindles with sockets with slots for drifting tools out of spindles, andgears, and gages secured at any suitable place, substantially asdescribed.

6. A turret head for a drill machine having a stationary part adapted tobe secured to the machine, a rotatable part mounted on said stationarypart, a rotary spindle journaled in said stationary part, a swivelmounted on said spindle and carrying gearing adapted to mesh with a gearwheel on said spindle, and a locking device for said swivel, said partsbeing combined substantially as described.

7. A turret head for a drill machine having a stationary part adapted tobe secured t0 the drill machine, a rotary part mounted on the formerpart, a rotary spindle j ournaled in said stationary part and having agear wheel therein, a swivel mounted on said spindle and carrying gearwheels substantially as described, a locking device for said swivel, anda locking device for said rotatable part, said parts being combinedsubstantially as set forth.

wiLLiAM c. JENNiNGs.

Witnesses:

JOHN A. WIEDERSHEIM, R. H. GRAESER.

